WO2020103251A1 - 植保无人机及其水箱和箱盖 - Google Patents

植保无人机及其水箱和箱盖

Info

Publication number
WO2020103251A1
WO2020103251A1 PCT/CN2018/122058 CN2018122058W WO2020103251A1 WO 2020103251 A1 WO2020103251 A1 WO 2020103251A1 CN 2018122058 W CN2018122058 W CN 2018122058W WO 2020103251 A1 WO2020103251 A1 WO 2020103251A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
top cover
bottom cover
wall surface
facing
Prior art date
Application number
PCT/CN2018/122058
Other languages
English (en)
French (fr)
Inventor
周万仁
周乐
吴晓龙
Original Assignee
深圳市大疆创新科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Publication of WO2020103251A1 publication Critical patent/WO2020103251A1/zh

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
    • B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
    • B64D1/18—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/14—Rigid discs or spherical members adapted to be held in sealing engagement with mouth of container, e.g. closure plates for preserving jars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas

Definitions

  • the invention relates to the technical field of unmanned aerial vehicles, in particular, to a tank cover, a water tank including the tank cover, and a plant protection drone including the water tank.
  • the pump will gradually evacuate the liquid medicine in the drone's water tank. If the water tank is completely sealed, the air pressure in the water tank will become lower and lower, causing the water tank to be deformed by atmospheric pressure, so
  • the water tank cover of the plant protection drone will be provided with an air through hole, which is used to maintain the balance of the air pressure inside and outside the water tank and prevent the water tank from being crushed.
  • the provision of the air vent hole prevents the water tank cover from being completely sealed, resulting in the risk of leakage of the medical fluid in the water tank, which in turn causes the loss of the medical fluid and the contamination of the medical fluid.
  • an object of the present invention is to provide a box lid.
  • Another object of the present invention is to provide a water tank including the above tank cover.
  • Still another object of the present invention is to provide a plant protection drone including the above water tank.
  • the technical solution of the first aspect of the present invention provides a box cover, which includes: a top cover provided with an air vent hole; a bottom cover assembled on the inner side of the top cover and A labyrinth fluid channel is defined between the top covers, one end of the fluid channel extends to and communicates with the air through hole, and the other end of the fluid channel is formed for fluid in and out Port.
  • the tank cover provided by the technical solution of the first aspect of the present invention, by adding a labyrinth fluid channel on the tank cover, the medical liquid in the tank must pass through the fluid channel to reach the air vent hole and flow out of the water tank, thereby significantly increasing the tank The flow resistance of the medical liquid leaking out of the box to the outside, thereby significantly reducing the risk of medical liquid leakage on the basis of ensuring ventilation, and preventing the loss of medical liquid and the contamination of the medical liquid caused by the sloshing of the medical liquid.
  • the tank cover includes a top cover and a bottom cover, and the top cover is provided with an air vent hole, which is used to realize the communication between the water tank and the atmosphere and meet the ventilation requirements of the tank cover; the bottom cover is assembled on the inside of the top cover and is connected with the top
  • a labyrinth fluid channel is defined between the covers, and one end of the fluid channel extends to the air through hole and communicates with the air through hole, and the other end is formed as a port for fluid in and out, so that the internal space of the tank can pass through the fluid in sequence
  • the channels and air vents are connected to the external environment, which is equivalent to adding a labyrinth fluid channel between the internal space of the box and the air vents of the lid, which not only meets the ventilation requirements of the water tank, but also significantly increases The flow path when the fluid leaks out, thereby preventing the liquid medicine from shaking out by increasing the flow resistance.
  • the present application increases the sealing ability of the medical solution, and forms a box cover with
  • the technical solution of the second aspect of the present invention provides a water tank including: a tank body; and the tank cover according to any one of the technical solutions of the first aspect, the cover is provided at an open end of the tank body, and a top thereof The air vent hole on the cover communicates with the external environment, and the port of the fluid channel communicates with the internal space of the box.
  • the water tank provided by the technical solution of the second aspect of the present invention includes the tank cover described in any one of the technical solutions of the first aspect, and thus has all the beneficial technical effects of any of the foregoing technical solutions, which is not repeated here.
  • the technical solution of the third aspect of the present invention provides a planting drone, including: a fuselage; and the water tank described in the technical solution of the second aspect, the water tank is carried on the fuselage.
  • the plant protection drone provided by the technical solution of the third aspect of the present invention includes the water tank described in the technical solution of the second aspect, and thus has all the beneficial effects of any of the foregoing technical solutions, which will not be repeated here.
  • FIG. 1 is an exploded schematic view of the lid of the first embodiment of the present invention
  • FIG. 2 is a schematic diagram of a bottom view of the box cover shown in FIG. 1 after being assembled;
  • FIG. 3 is a schematic cross-sectional structural view of the box cover shown in FIG. 2;
  • FIG. 4 is a schematic perspective view of the top cover of FIG. 1;
  • FIG. 5 is a schematic view of the bottom structure of the top cover shown in FIG. 4;
  • FIG. 6 is an exploded schematic view of the lid of the second embodiment of the present invention.
  • FIG. 7 is a schematic view of the bottom structure of FIG. 6 after assembly of the lid;
  • FIG. 8 is a schematic cross-sectional structural view of the box cover shown in FIG. 7;
  • FIG. 9 is an enlarged schematic structural view of part A in FIG. 8;
  • FIG. 10 is a schematic view of the three-dimensional structure of the top cover in FIG. 6;
  • FIG. 11 is a schematic view of the bottom structure of the top cover shown in FIG. 10;
  • FIG. 12 is a schematic perspective view of the bottom cover of FIG. 6;
  • FIG. 13 is an enlarged schematic structural view of part B in FIG. 12;
  • FIG. 14 is a schematic diagram of the bottom structure of the bottom cover shown in FIG. 12;
  • FIG. 15 is a schematic structural diagram of a water tank according to some embodiments of the present invention.
  • 16 is a schematic structural view of a plant protection drone according to some embodiments of the present invention.
  • the box cover 10 provided by the embodiment of the first aspect of the present invention includes a top cover 11 and a bottom cover 12.
  • the top cover 11 is provided with an air through hole 111, as shown in FIGS. 4, 5, 10 and 11; the bottom cover 12 is assembled inside the top cover 11 and defines a labyrinth with the top cover 11 Type fluid channel 15, one end of the fluid channel 15 extends to the air through hole 111 and communicates with the air through hole 111, as shown in FIGS. 3, 8 and 9, the other end of the fluid channel 15 is formed for fluid in and out Port.
  • the tank cover 10 provided by the embodiment of the first aspect of the present invention, by adding a labyrinth fluid channel 15 on the tank cover 10, the medical liquid in the tank 20 must pass through the fluid channel 15 to reach the air passage hole 111 and flow out
  • the water tank significantly increases the flow resistance of the leakage of the chemical liquid from the tank 20 to the outside of the tank, and on the basis of ensuring ventilation, the risk of leakage of the chemical liquid is significantly reduced, and the loss of the chemical liquid caused by the sloshing of the chemical liquid is prevented. Chemical liquid contamination.
  • the tank cover 10 includes a top cover 11 and a bottom cover 12, and the top cover 11 is provided with an air through hole 111 for achieving communication between the water tank and the atmosphere to meet the ventilation requirements of the tank cover 10; the bottom cover 12 is assembled on the top
  • the inner side of the cover 11 defines a labyrinth fluid channel 15 with the top cover 11, and one end of the fluid channel 15 extends to and communicates with the air through hole 111, and the other end is formed for fluid in and out
  • the port of the box 20 enables the internal space of the box 20 to communicate with the external environment through the fluid channel 15 and the air through hole 111 in sequence.
  • the labyrinth fluid channel 15 not only satisfies the ventilation requirements of the water tank, but also significantly increases the flow path when the fluid leaks out, thereby preventing the medicine liquid from shaking out by increasing the flow resistance.
  • the present application increases the sealing ability of the chemical solution, and forms a box cover 10 with a ventilation sealing structure, which significantly reduces the risk of leakage of the chemical solution.
  • box cover 10 The specific structure of the box cover 10 provided by the present application will be described in detail below in conjunction with some embodiments.
  • Example 1 (as shown in Figures 1 to 5)
  • At least one of the wall surface of the top cover 11 facing the bottom cover 12 and the wall surface of the bottom cover 12 facing the top cover 11 is provided with a flow blocking structure, the flow blocking structure surrounds the air through hole 111 and surrounds the top cover 11 and the bottom cover 12 ⁇ ⁇ ⁇ 15 ⁇ 15 out of the fluid channel.
  • At least one of the wall surface of the top cover 11 facing the bottom cover 12 and the wall surface of the bottom cover 12 facing the top cover 11 is provided with a flow blocking structure, that is, only the wall surface of the top cover 11 facing the bottom cover 12 is provided with a flow blocking structure, or Only the wall surface of the bottom cover 12 facing the top cover 11 is provided with a flow blocking structure, or the wall surface of the top cover 11 facing the bottom cover 12 and the wall surface of the bottom cover 12 facing the top cover 11 are provided with a flow blocking structure at the same time;
  • the through hole 111 and the top cover 11 and the bottom cover 12 enclose a fluid channel 15, which not only shortens the distance between the fluid channel 15 and the air through hole 111, but also rationally uses the structure of the top cover 11 and the bottom cover 12, Therefore, the flow blocking structure is simplified, which is beneficial to processing and forming and helps to save production costs.
  • the fluid channel 15 can also be formed using only a flow blocking structure, and the top cover 11 and the bottom cover 12 only cover the fluid channel 15.
  • the flow blocking structure may be a separate component assembled on the top cover 11 and / or the bottom cover 12, or may be a structure integrally formed with the top cover 11 or the bottom cover 12.
  • the flow blocking structure includes a spiral baffle plate 112 disposed on the wall surface of the top cover 11 facing the bottom cover 12, as shown in FIGS. 4 and 5, the wall surface of the bottom cover 12 facing the top cover 11 and the spiral flow blocking A sealing pad 13 is interposed between the plates 112 as shown in FIGS. 1 and 3.
  • the choke structure includes a helical choke plate 112, and the helical choke plate 112 is disposed on the wall surface of the top cover 11 facing the bottom cover 12, and then its axial top end is covered by the wall surface of the top cover 11 facing the bottom cover 12, which The bottom end in the axial direction can be covered by the wall surface of the bottom cover 12 toward the top cover 11, so that the fluid channel 15 enclosed by the spiral baffle plate 112, the top cover 11, and the bottom cover 12 also has a spiral shape, that is, a spiral is formed
  • the shape of the labyrinth structure so the medical liquid in the box 20 needs to rotate multiple times along the spiral fluid channel 15 to reach the air through hole 111, thus effectively increasing the flow resistance; at the same time, the bottom cover 12 faces the top cover 11
  • a sealing gasket 13 is also interposed between the wall surface of the spiral baffle plate 112, and the sealing gasket 13 can seal the axial bottom end of the spiral baffle plate 112, reducing the flow of fluid from between the spiral sealing plate and the bottom cover 12. The probability of reaching the
  • the flow blocking structure includes a spiral baffle plate 112 disposed on the wall surface of the top cover 11 facing the bottom cover 12 and a wall between the wall surface of the bottom cover 12 facing the top cover 11 and the spiral baffle plate 112 is sandwiched
  • the central portion of the gasket 13 is raised upward to form a positioning boss 131, which is inserted into the fluid channel 15 and has a gap with the wall surface of the top cover 11 facing the bottom cover 12, and the side of the positioning boss 131 A part of the wall surface abuts the spiral spoiler 112 as shown in FIG. 3.
  • spiral baffle plate 112 is provided on the wall surface of the top cover 11 facing the bottom cover 12 and a seal pad 13 is interposed between the bottom cover 12 and the spiral baffle plate 112, the middle of the seal pad 13
  • the positioning boss 131 is raised upward, and the positioning boss 131 is inserted into the fluid channel 15 during assembly.
  • a part of the side wall surface of the positioning boss 131 will abut against the spiral baffle plate 112, thereby playing a good positioning role, and Prevents the gasket 13 from shaking, shifting, etc., thereby improving assembly efficiency; at the same time, there is a gap between the gasket 13 and the wall surface of the top cover 11 facing the bottom cover 12 to prevent the positioning boss 131 from blocking the air through hole 111, The effective communication between the fluid channel 15 and the air through hole 111 and the internal space of the box body 20 is ensured.
  • spiral central axis of the spiral baffle plate 112 coincides with the central axis of the air through hole 111, as shown in FIGS. 3 to 5.
  • the spiral central axis of the spiral baffle plate 112 coincides with the central axis of the air through hole 111, which makes the product structure more regular, which is convenient for processing and assembly.
  • the liquid medicine in the box 20 can only spiral through the fluid channel 15 from outside to inside to reach the air through hole 111.
  • the structure and principle are relatively simple and easy to implement.
  • the peripheral end of the spiral fluid channel 15 may be communicated with the air passage 111.
  • bottom cover 12 and the top cover 11 are connected by a screw-on fixing structure.
  • the bottom cover 12 and the top cover 11 are connected by a screw-on fixing structure, so that the assembly and disassembly between the bottom cover 12 and the top cover 11 can be achieved by rotating, the operation method is simple and fast, which is beneficial to improve the efficiency of loading and unloading.
  • the screw-on fixing structure includes a connection plate 114 (as shown in FIGS. 4 and 5) provided on the wall surface of the top cover 11 facing the bottom cover 12 and a connection plate 114 provided on the outer periphery of the bottom cover 12 and cooperating with the connection plate 114
  • the cover edge 122 is fixedly connected to the connecting plate 114 by screwing, and the screwing fixing structure surrounds the fluid channel 15 and defines a fluid inlet and outlet 1141 communicating with the port.
  • the screw-on fixing structure includes a connection plate 114 and a cover edge 122.
  • the connection plate 114 is provided on the wall surface of the top cover 11 facing the bottom cover 12, and the cover edge 122 is provided on the outer periphery of the bottom cover 12 and cooperates with the connection plate 114.
  • the fixed structure surrounds the fluid channel 15 and is provided with a fluid inlet and outlet 1141.
  • the fluid inlet and outlet 1141 communicates with the port of the fluid channel 15 to ensure that the medical solution in the tank 20 can reach the port through the fluid inlet and outlet 1141, thereby ensuring the port and the tank The communication between the internal spaces of the body 20.
  • one of the connecting plate 114 and the cover edge 122 is provided with a plurality of rotation hooks 123 which rotate and extend in the circumferential direction of the box cover 10, as shown in FIGS. 1 and 3, and the other is provided with a rotation
  • the hooks 123 cooperate with each other and correspond to a plurality of rotating locking protrusions 115.
  • the rotating locking hooks 123 can rotate relative to the rotating locking protrusions 115 during the assembly process and hook onto the rotating locking protrusions 115,
  • the bottom cover 12 and the top cover 11 are screwed together and fixed, as shown in FIG. 3.
  • One of the connecting plate 114 and the cover edge 122 is provided with a rotation hook 123, and the other is provided with a rotation lock protrusion 115.
  • Both the rotation hook 123 and the rotation lock protrusion 115 are rotated and extended in the circumferential direction of the box cover 10, so By rotating, the rotating hook 123 and the rotating protrusion 115 can be screwed and fixed, and then the bottom cover 12 and the top cover 11 can be screwed and fixed; at the same time, after the assembly is completed, the rotary hook 123 hook is rotating
  • the locking protrusion 115 can effectively prevent the relative rotation between the connecting plate 114 and the cover edge 122 without being affected by external force, thereby ensuring the fixing reliability between the bottom cover 12 and the top cover 11.
  • the rotation hook 123 is inclined toward the wall surface of the rotation protrusion 115 and the rotation protrusion 115 is inclined toward the wall surface of the rotation hook 123 toward the top cover 11, as shown in FIG. 1 and Figure 4.
  • the rotation hook 123 is inclined toward the wall surface of the rotation protrusion 115 and the rotation protrusion 115 is inclined toward the wall surface of the rotation hook 123 toward the top cover 11, which can play a good role Guiding effect, thereby improving the efficiency of product assembly.
  • the rotating hook 123 is provided on the inner side wall of the cover edge 122, as shown in FIG. 3, and there is a gap between the hook portion 1231 at the end and the inner side wall of the cover edge 122, as shown in FIG. 13,
  • the rotating card protrusion 115 is provided on the outer surface of the connecting plate 114, as shown in FIGS. 4 and 5.
  • the rotation hook 123 is provided on the inner side wall of the cover edge 122, and accordingly, the rotation hook 115 is provided on the outer plate surface of the connecting plate 114. During the assembly process, only the rotation hook 123 contacts the rotation hook 115. There is a gap between the inner side wall of the cover 122 and the outer surface of the connecting plate 114, which can significantly reduce the contact area between the cover 122 and the connecting plate 114 during the assembly process, thereby reducing the frictional resistance during the assembly process , Further improving the assembly efficiency; and there is a gap between the hook portion 1231 at the end of the rotating hook 123 and the inner wall of the cover edge 122, which facilitates the appropriate elastic deformation of the hook portion 1231 and facilitates the rotation of the hook 123 over
  • the rotating card protrusion 115 is hooked on the rotating card protrusion 115 to effectively ensure the connection reliability between the top cover 11 and the bottom cover 12.
  • the fluid inlet and outlet 1141 directly communicates with the internal space of the box 20, and indirectly communicates with the port of the fluid channel 15 through the gap between the cover edge 122 and the top cover 11;
  • the fluid inlet and outlet 1141 directly communicates with the port of the fluid channel 15 and indirectly communicates with the internal space of the box 20 through the gap between the cover edge 122 and the top cover 11.
  • the number of the fluid inlets and outlets 1141 is plural, and the plurality of fluid inlets and outlets 1141 are evenly distributed along the circumferential direction of the screw-on fixed structure, as shown in FIGS. 4 and 5.
  • the number of fluid inlets and outlets 1141 is set to multiple, which effectively improves the reliability of the communication between the air vent 111 and the internal space of the box 20; the multiple fluid inlets and outlets 1141 are evenly distributed along the circumferential direction of the screw-on fixed structure, making the structure of the product It is more regular and easy to process and shape.
  • outer peripheral portion of the wall surface of the bottom cover 12 facing the top cover 11 is further provided with a plurality of strip-shaped through grooves 124, as shown in FIGS. 1 and 2.
  • a plurality of strip-shaped through grooves 124 are designed on the outer peripheral portion of the wall surface of the bottom cover 12 facing the top cover 11 to facilitate the mold-out process when the bottom cover 12 is injection-molded to reduce the undercut structure;
  • the medicinal solution inside flows back into the box 20 to improve the utilization rate of the medicinal solution.
  • bottom cover 12 is further provided with at least one hand-held portion 125 for screwing the bottom cover 12, as shown in FIGS. 1 and 2.
  • the bottom cover 12 is also provided with a hand-held portion 125.
  • the hand-held portion 125 is used for screwing the bottom cover 12, which facilitates the assembly between the bottom cover 12 and the top cover 11, which is beneficial to improve the assembly efficiency; at the same time, after the assembly is completed, the hand-held portion 125 Hidden inside the box 20 also improves the aesthetics of the product.
  • the number of the hand-held portions 125 is plural, and the plurality of hand-held portions 125 are evenly distributed along the circumferential direction of the bottom cover 12.
  • the bottom cover 12 is further provided with at least one hand-held portion 125 for screwing the bottom cover 12, the hand-held portion 125 is provided with an escape slope 1251, as shown in FIG.
  • the hand-held portion 125 has a hollow structure, as shown in FIGS. 12 and 14.
  • an escaping slope 1251 is provided on the hand-held portion 125, which can prevent the right-angled side of the hand-held portion 125 from scratching the user's fingers or sticking hands, and also helps to reduce the volume of the bottom cover 12, It is beneficial to reduce the weight of the box cover 10; designing the hand-held portion 125 as a hollow structure is not only beneficial to reduce weight, but also facilitates the injection molding of the bottom cover 12 into an equal-thickness structure.
  • the bottom cover 12 is an injection molded part.
  • the bottom cover 12 is an injection-molded part.
  • the processing technology is mature, suitable for mass production, and is conducive to reducing the weight of the box cover 10. It is also suitable for processing into various desired shapes, thus helping to optimize the structure and performance of the product.
  • top cover 11 is further provided with a sealing ring 14. As shown in FIGS. 1 and 2, the sealing ring 14 is used to seal the gap between the box cover 10 and the box body 20.
  • the top cover 11 is also provided with a sealing ring 14, which is used to seal the gap between the box cover 10 and the box body 20, which improves the sealing of the water tank and further reduces the risk of leakage of the chemical liquid.
  • the flow blocking structure includes a plurality of first annular flow blocking plates 113 (as shown in FIGS. 10 and 11) arranged on the wall surface of the top cover 11 facing the bottom cover 12 and arranged in a nested manner.
  • a plurality of second annular baffles 121 (as shown in FIGS.
  • the choke structure includes a plurality of first annular choke plates 113 and a plurality of second annular choke plates 121.
  • the plurality of first annular choke plates 113 are arranged on the wall surface of the top cover 11 facing the bottom cover 12 and nested in a row Cloth, a plurality of second annular baffles 121 are provided on the wall surface of the bottom cover 12 facing the top cover 11 and are nested in sequence; a plurality of first annular baffles 113 and a plurality of second annular baffles 121 are in this order Staggered spacing distribution, that is: in the form of ABABAB ...
  • the medical solution can flow downward through the gap between the first annular baffle 113 and the bottom cover 12 and flow between the two gaps on both sides of the first annular baffle 113; a plurality of second annular baffles There is also a gap between the plate 121 and the wall surface of the top cover 11 facing the bottom cover 12, which ensures that the gap between any second annular baffle plate 121 and the adjacent first annular baffle plate 113 are in communication with each other
  • the liquid medicine can flow upward through the gap between the second annular baffle 121 and the top cover 11 and flow between the two gaps on both sides of the second annular baffle 121.
  • a plurality of first annular baffles 113 are arranged concentrically, as shown in FIGS. 10 and 11, a plurality of second annular baffles 121 are arranged concentrically, as shown in FIGS. 12 and 14, and multiple The central axis of the first annular baffle 113 and the central axes of the plurality of second annular baffles 121 are collinear with the central axis of the air through hole 111, as shown in FIGS. 8 and 9.
  • a plurality of first annular baffles 113 are arranged concentrically, a plurality of second annular baffles 121 are arranged concentrically, and the central axis of the plurality of first annular baffles 113 is coaxial with the central axis of the air through hole 111,
  • the central axis of the plurality of second annular baffles 121 is collinear with the central axis of the air through hole 111, which makes the structure of the product more regular, easy to process and assemble, and easy to assemble; at this time, the medical liquid in the box 20 is also only
  • the fluid passage 15 can be passed from the outside to the inside to reach the air through hole 111.
  • the structure and principle are relatively simple and easy to implement.
  • one of the connecting plate 114 and the cover edge 122 is provided with an internal thread, and the other is provided with an external thread.
  • the internal thread cooperates with the external thread, so that the bottom cover 12 and the top cover 11 are screwed together fixed.
  • One of the connecting plate 114 and the cover edge 122 is provided with an internal thread, and the other is provided with an external thread.
  • the internal thread cooperates with the external thread, and the bottom cover 12 and the top cover 11 can also be screwed together and fixed.
  • the principle is relatively simple, and the fixation is more reliable.
  • a fluid inlet and outlet 1141 may be provided on the connecting plate 114 to provide a gap between the cover edge 122 and the wall surface of the top cover 11 facing the bottom cover 12 to ensure that the fluid inlet and outlet 1141 can communicate with the port of the fluid channel 15 and the box 20 Interior space.
  • Embodiment 4 (not shown in the figure)
  • the flow blocking structure includes a spiral baffle plate 112 disposed on the wall surface of the top cover 11 facing the bottom cover 12, and the wall surface of the bottom cover 12 facing the top cover 11 abuts the spiral baffle plate 112 .
  • the fourth embodiment omits the gasket 13 so that the wall surface of the bottom cover 12 facing the top cover 11 directly abuts the spiral baffle plate 112, and can also cover the axial two sides of the spiral baffle plate.
  • a spiral fluid channel 15 is enclosed, and its working principle is basically the same as the foregoing solution, which will not be repeated here.
  • Embodiment 5 (not shown in the figure)
  • the flow blocking structure includes a spiral baffle plate 112 disposed on the wall surface of the bottom cover 12 facing the top cover 11, and the wall surface of the top cover 11 facing the bottom cover 12 abuts the spiral baffle plate 112 .
  • the fifth embodiment omits the gasket 13 and changes the installation position of the spiral baffle plate 112, which is arranged on the wall surface of the bottom cover 12 facing the top cover 11 so that the axial top end is The wall surface of the top cover 11 facing the bottom cover 12 only needs to abut.
  • the working principle of this embodiment is basically the same as the foregoing solution, and details are not described herein again.
  • the water tank provided by the embodiment of the second aspect of the present invention includes: a tank body 20 and a tank cover 10 according to any one of the embodiments of the first aspect, the cover is provided at the open end of the tank body 20, and The air through hole 111 on the top cover 11 communicates with the external environment, and the port of the fluid channel 15 communicates with the internal space of the box 20.
  • the water tank provided by the embodiment of the second aspect of the present invention includes the tank cover 10 of any one of the embodiments of the first aspect, it has all the beneficial technical effects of any of the foregoing embodiments, which will not be repeated here.
  • the plant protection drone 100 provided by the embodiment of the third aspect of the present invention includes a fuselage 101 and a water tank as in the embodiment of the second aspect.
  • the water tank is mounted on the fuselage 101.
  • the plant protection drone 100 provided by the embodiment of the third aspect of the present invention includes the water tank of the embodiment of the second aspect, and thus has all the beneficial effects of any of the foregoing embodiments, which will not be repeated here.
  • this application mainly realizes the ventilation seal of the plant protection drone tank cover 10, and under the condition of ensuring ventilation, the sealing ability of the chemical liquid is increased to prevent it from shaking out, so as to solve the long-term existence in the field of drone plant protection The problem.
  • a planting drone 100 the fuselage 101 is equipped with a water tank, and the water tank includes a tank cover 10 having a ventilating seal structure, which essentially applies a labyrinth seal to the water tank cover 10.
  • the water tank cover 10 is composed of a top cover 11, an air-through sealing pad 13, an air-through screw cap (ie, a bottom cover 12), and a top cover 11 sealing ring 14. Among them, as shown in FIGS. 4 and 5, there is an air through hole 111 in the center of the top cover 11 of the water tank.
  • the maze structure similar to the spiral line around the air through hole 111 ( (Spiral baffle plate 112); the top cover 11 sealing ring 14 is used to seal the top cover 11 and the water tank mouth; the air-through screw cap is used to tighten the air-through seal 13 to turn the outer end surface of the bone position (that is, toward the screw)
  • One end of the cover is sealed so that the fluid can only pass through the labyrinth structure formed by the bone position to reach the air hole and flow out of the water tank, thereby preventing the medicine liquid from shaking out by increasing the flow resistance.
  • a planting drone 100 the fuselage 101 is equipped with a water tank, and the water tank includes a tank cover 10 having a ventilating seal structure, which essentially also applies a labyrinth seal to the water tank cover 10.
  • the water tank cover 10 is composed of a top cover 11, an air-through screw cover, and a seal ring 14 of the top cover 11.
  • a top cover 11 As shown in FIGS. 10 and 11, there is an air through hole 111 in the center of the water tank top cover 11.
  • the inner upper wall of the air-through screw cap has several concentric cylindrical bone positions similar to the top cap 11.
  • the sealing ring 14 of the top cover 11 is used to seal the top cover 11 and the water tank mouth; the bone position on the top cover 11 and the bone position on the air vent cover are interlaced, so that the fluid can only pass through the maze structure formed by the bone position to reach the air hole It flows out of the water tank to prevent the liquid medicine from shaking out by increasing the flow resistance.
  • the present invention is also applicable to other fields that require a vented sealing structure (not airtight, but with liquid sealing capability).
  • the medical liquid in the tank must pass through the fluid channel to reach the air passage hole and flow out of the water tank, thereby significantly increasing the tank body.
  • the flow resistance of the leakage of the chemical liquid to the outside of the box thereby significantly reducing the risk of leakage of the chemical liquid on the basis of ensuring ventilation, and preventing the loss of the chemical liquid and the pollution of the chemical liquid caused by the sloshing of the chemical liquid.
  • connection may be a fixed connection, a detachable connection, or an integral connection; It is directly connected, or indirectly connected through an intermediary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Insects & Arthropods (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Closures For Containers (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

一种植保无人机及其水箱和箱盖，箱盖（10）包括：顶盖（11），顶盖（11）上开设有气通孔（111）；底盖（12），装配在顶盖（11）的内侧，且与顶盖（11）之间限定出迷宫式的流体通道（15），流体通道（15）的一端延伸至气通孔（111）处并与气通孔（111）相连通，流体通道（15）的另一端形成为供流体进出的端口。

Description

植保无人机及其水箱和箱盖 技术领域
本发明涉及无人机技术领域，具体而言，涉及一种箱盖、包括该箱盖的水箱及包括该水箱的植保无人机。
背景技术
目前，现有的植保无人机在作业过程中，水泵会将无人机水箱内的药液逐渐抽空，如果水箱完全密封，水箱内的气压会越来越低，导致水箱被大气压变形，所以植保无人机的水箱盖都会设有一个气通孔，用于维持水箱内外气压平衡，防止水箱被压瘪。但是，气通孔的设置使得水箱盖不能完全密封，导致水箱内的药液有漏出的风险，进而造成药液损失以及药液污染。
发明内容
为了解决上述技术问题至少之一，本发明的一个目的在于提供一种箱盖。
本发明的另一个目的在于提供一种包括上述箱盖的水箱。
本发明的又一个目的在于提供一种包括上述水箱的植保无人机。
为了实现上述目的，本发明第一方面的技术方案提供了一种箱盖，包括：顶盖，所述顶盖上开设有气通孔；底盖，装配在所述顶盖的内侧，且与所述顶盖之间限定出迷宫式的流体通道，所述流体通道的一端延伸至所述气通孔处并与所述气通孔相连通，所述流体通道的另一端形成为供流体进出的端口。
本发明第一方面的技术方案提供的箱盖，通过在箱盖上增设迷宫式的流体通道，使得箱体内的药液必须穿过流体通道才能到达气通孔处流出水箱，从而显著增加了箱体内药液外漏至箱外的流阻，进而在保证通气的基础上显著降低了药液外漏的风险，防止了药液晃出导致的药液损失及药液污染。
具体而言，箱盖包括顶盖和底盖，顶盖上开设有气通孔，用于实现水箱与大气的连通，满足箱盖的通气需求；底盖装配在顶盖的内侧，并与顶盖之间限定出迷宫式的流体通道，且流体通道的一端延伸至气通孔处并与气通孔相连通，另一端形成为供流体进出的端口，使得箱体的内部空间能够依次通过流体通道、气通孔与外界环境相连通，这相当于在箱体的内部空间与箱盖的气通孔之间增设了迷宫式的流体通道，因而既满足了水箱的通气需求，又显著增加了流体外漏时的流动路径，从而通过增大流阻的方式防止了药液晃出。换言之，本申请在保证通气的条件下，增大了对药液的密封能力，形成了具有通气密封结构的箱盖，显著降低了药液外漏的风险。
本发明第二方面的技术方案提供了一种水箱，包括：箱体；和如第一方面技术方案中任一项所述的箱盖，盖设在所述箱体的开口端，且其顶盖上的气通孔与外界环境相连通，其流体通道的端口与所述箱体的内部空间相连通。
本发明第二方面的技术方案提供的水箱，因包括第一方面技术方案中任一项所述的箱盖，因而具有上述任一技术方案所具有的一切有益技术效果，在此不再赘述。
本发明第三方面的技术方案提供了一种植保无人机，包括：机身；以及如第二方面技术方案所述的水箱，所述水箱搭载在所述机身上。
本发明第三方面的技术方案提供的植保无人机，因包括第二方面技术方案所述的水箱，因而具有上述任一技术方案所具有的一切有益效果，在此不再赘述。
本发明的附加方面和优点将在下面的描述部分中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是本发明第一个实施例所述的箱盖的分解结构示意图；
图2是图1所示箱盖装配后的仰视结构示意图；
图3是图2所示箱盖的剖视结构示意图；
图4是图1中顶盖的立体结构示意图；
图5是图4所示顶盖的仰视结构示意图；
图6是本发明第二个实施例所述的箱盖的分解结构示意图；
图7是图6所示箱盖装配后的仰视结构示意图；
图8是图7所示箱盖的剖视结构示意图；
图9是图8中A部的放大结构示意图；
图10是图6中顶盖的立体结构示意图；
图11是图10所示顶盖的仰视结构示意图；
图12是图6中底盖的立体结构示意图；
图13是图12中B部的放大结构示意图；
图14是图12所示底盖的仰视结构示意图；
图15是本发明一些实施例所述的水箱的结构示意图；
图16是本发明一些实施例所述的植保无人机的结构示意图。
其中，图1至图16中的附图标记与部件名称之间的对应关系为：
100植保无人机，101机体，
10箱盖，
11顶盖，111气通孔，112螺旋形阻流板，113第一环形阻流板，114连接板，1141流体出入口，115旋转卡凸，
12底盖，121第二环形阻流板，122盖沿，123旋转卡钩，1231钩接部位，124条形通槽，125手持部，1251避让斜面，
13密封垫，131定位凸台，
14密封圈，15流体通道，
20箱体。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。
下面参照图1至图16描述根据本发明一些实施例所述的箱盖、水箱及植保无人机。
如图1至图14所示，本发明第一方面的实施例提供的箱盖10，包括：顶盖11和底盖12。
具体地，顶盖11上开设有气通孔111，如图4、图5、图10和图11所示；底盖12装配在顶盖11的内侧，且与顶盖11之间限定出迷宫式的流体通道15，流体通道15的一端延伸至气通孔111处并与气通孔111相连通，如图3、图8和图9所示，流体通道15的另一端形成为供流体进出的端口。
本发明第一方面的实施例提供的箱盖10，通过在箱盖10上增设迷宫式的流体通道15，使得箱体20内的药液必须穿过流体通道15才能到达气通孔111处流出水箱，从而显著增加了箱体20内药液外漏至箱外的流阻，进而在保证通气的基础上显著降低了药液外漏的风险，防止了药液晃出导致的药液损失及药液污染。
具体而言，箱盖10包括顶盖11和底盖12，顶盖11上开设有气通孔111，用于实现水箱与大气的连通，满足箱盖10的通气需求；底盖12装配在顶盖11的内侧，并与顶盖11之间限定出迷宫式的流体通道15，且流体通道15的一端延伸至气通孔111处并与气通孔111相连通，另一端形成为供流体进出的端口，使得箱体20的内部空间能够依次通过流体通道15、气通孔111与外界环境相连通，这相当于在箱体20的内部空间与箱盖10的气通孔111之间增设了迷宫式的流体通道15，因而既满足了水箱的通气需求，又显著增加了流体外漏时的流动路径，从而通过增大流阻的方式防止了药液晃出。换言 之，本申请在保证通气的条件下，增大了对药液的密封能力，形成了具有通气密封结构的箱盖10，显著降低了药液外漏的风险。
下面结合一些实施例来详细描述本申请提供的箱盖10的具体结构。
实施例一(如图1至图5所示)
顶盖11朝向底盖12的壁面与底盖12朝向顶盖11的壁面中的至少一个上设有阻流结构，阻流结构环绕气通孔111，并与顶盖11及底盖12围设出流体通道15。
顶盖11朝向底盖12的壁面与底盖12朝向顶盖11的壁面中的至少一个上设有阻流结构，即：仅顶盖11朝向底盖12的壁面上设有阻流结构，或者仅底盖12朝向顶盖11的壁面上设有阻流结构，或者顶盖11朝向底盖12的壁面及底盖12朝向顶盖11的壁面上同时设有阻流结构；阻流结构环绕气通孔111，并与顶盖11及底盖12围设出流体通道15，既缩短了流体通道15与气通孔111之间的距离，又合理利用了顶盖11及底盖12的结构，从而简化了阻流结构，有利于加工成型，有助于节约生产成本。
当然，流体通道15也可以仅仅利用阻流结构来形成，顶盖11和底盖12只是包覆在流体通道15。
进一步地，阻流结构可以是单独的部件组装在顶盖11和/或底盖12上，也可以是与顶盖11或者底盖12一体成型的结构。
具体地，阻流结构包括设置在顶盖11朝向底盖12的壁面上的螺旋形阻流板112，如图4和图5所示，底盖12朝向顶盖11的壁面与螺旋形阻流板112之间夹设有密封垫13，如图1和图3所示。
阻流结构包括螺旋形阻流板112，螺旋形阻流板112设置在顶盖11朝向底盖12的壁面上，则其轴向的顶端被顶盖11朝向底盖12的壁面封盖，其轴向的底端能够被底盖12朝向顶盖11的壁面封盖，因而螺旋形阻流板112与顶盖11、底盖12围设出的流体通道15也呈螺旋形，即形成了螺旋形的迷宫结构，故而箱体20内的药液需沿着螺旋形的流体通道15旋转多圈才能够到达气通孔111处，因而有效增加了流阻；同时，底盖12朝向顶盖11的壁面与螺旋形阻流板112之间还夹设有密封垫13，密封垫13能够密封螺旋形阻 流板112的轴向底端，降低了流体从螺旋形密封板与底盖12之间的间隙处到达气通孔111的概率，确保了流体只能穿过螺旋形的迷宫结构才能到达气通孔111处，从而提高了流体通道15的使用可靠性，进一步降低了药液外漏的风险。
进一步地，当阻流结构包括设置在顶盖11朝向底盖12的壁面上的螺旋形阻流板112且底盖12朝向顶盖11的壁面与螺旋形阻流板112之间夹设有密封垫13时，密封垫13的中部向上隆起形成定位凸台131，定位凸台131插入流体通道15内，并与顶盖11朝向底盖12的壁面之间具有间隙，且定位凸台131的侧壁面的一部分与螺旋形阻流板112相抵靠，如图3所示。
对于前述螺旋形阻流板112设置在顶盖11朝向底盖12的壁面上且底盖12与螺旋形阻流板112之间夹设有密封垫13的方案而言，使密封垫13的中部向上隆起形成定位凸台131，装配时将定位凸台131插入流体通道15内，定位凸台131的侧壁面的一部分会与螺旋形阻流板112相抵靠，从而起到良好的定位作用，能够防止密封垫13发生晃动、移位等情况，从而提高了装配效率；同时，密封垫13与顶盖11朝向底盖12的壁面之间具有间隙，防止了定位凸台131堵塞气通孔111，保证了流体通道15与气通孔111及箱体20的内部空间的有效连通。
进一步地，螺旋形阻流板112的螺旋中心轴线与气通孔111的中心轴线重合，如图3至图5所示。
螺旋形阻流板112的螺旋中心轴线与气通孔111的中心轴线重合，使得产品的结构较为规整，既便于加工成型，也便于装配。此时，箱体20内的药液只能由外向内螺旋穿过流体通道15才能到达气通孔111处，结构和原理较为简单，易于实现。当然，也可以将螺旋形流体通道15的外围端部与气通孔111连通。
进一步地，底盖12与顶盖11通过旋合固定结构相连。
底盖12与顶盖11通过旋合固定结构相连，则底盖12与顶盖11之间的装配与拆卸均可通过旋转的方式实现，操作方式简单快捷，有利于提高装卸效率。
其中，旋合固定结构包括设置在顶盖11朝向底盖12的壁面上的连接板 114(如图4和图5所示)和设置在底盖12的外周缘并与连接板114相配合的盖沿122，盖沿122与连接板114通过旋合的方式固定相连，且旋合固定结构包围流体通道15，并开设有与端口相连通的流体出入口1141。
旋合固定结构包括连接板114和盖沿122，连接板114设置在顶盖11朝向底盖12的壁面上，盖沿122设置在底盖12的外周缘并与连接板114相配合，安装时，只需将盖沿122对接至连接板114处通过旋转盖沿122即可使其与连接板114固定相连，从而实现顶盖11与底盖12之间的装配，简单快捷；同时，旋合固定结构包围流体通道15，并开设有流体出入口1141，流体出入口1141与流体通道15的端口相连通，保证了箱体20内的药液能够通过流体出入口1141到达端口处，进而保证了端口与箱体20的内部空间之间的连通。
进一步地，连接板114与盖沿122中的一个上设有多个沿箱盖10的周向方向旋转延伸的旋转卡钩123，如图1和图3所示，另一个上设有与旋转卡钩123相配合且一一对应的多个旋转卡凸115，如图4和图5所示，旋转卡钩123能够在装配过程中相对旋转卡凸115旋转并钩在旋转卡凸115上，使底盖12与顶盖11旋合固定，如图3所示。
连接板114与盖沿122中的一个上设有旋转卡钩123，另一个上设有旋转卡凸115，旋转卡钩123与旋转卡凸115均沿箱盖10的周向方向旋转延伸，因而通过旋转的方式能够实现旋转卡钩123与旋转卡凸115之间的旋合固定，进而实现底盖12与顶盖11之间的旋合固定；同时，装配完成后旋转卡钩123钩在旋转卡凸115上，能够有效防止连接板114与盖沿122之间在不受外力的作用下发生相对转动，从而保证底盖12与顶盖11之间的固定可靠性。
进一步地，沿底盖12在装配过程中的旋转方向，旋转卡钩123朝向旋转卡凸115的壁面及旋转卡凸115朝向旋转卡钩123的壁面向靠近顶盖11的方向倾斜延伸，如图1和图4所示。
沿底盖12在装配过程中的旋转方向，旋转卡钩123朝向旋转卡凸115的壁面及旋转卡凸115朝向旋转卡钩123的壁面向靠近顶盖11的方向倾斜延伸，这样能够起到良好的导向作用，从而提高产品的装配效率。
优选地，旋转卡钩123设置在盖沿122的内侧壁上，如图3所示，且其 端部的钩接部位1231与盖沿122的内侧壁之间具有间隙，如图13所示，旋转卡凸115设置在连接板114的外板面上，如图4和图5所示。
旋转卡钩123设置在盖沿122的内侧壁上，相应地，旋转卡凸115设置在连接板114的外板面上，则装配过程中，只有旋转卡钩123与旋转卡凸115相接触，而盖沿122的内侧壁与连接板114的外板面之间具有间隙，这样能够显著减小装配过程中盖沿122与连接板114之间的接触面积，从而减小装配过程中的摩擦阻力，进一步提高了装配效率；且旋转卡钩123端部的钩接部位1231与盖沿122的内侧壁之间具有间隙，这便于钩接部位1231发生适量的弹性变形，有利于旋转卡钩123越过旋转卡凸115进而钩在旋转卡凸115上，有效保证顶盖11与底盖12之间的连接可靠性。
进一步地，盖沿122与顶盖11朝向底盖12的壁面之间具有间隙，如图3所示，连接板114上开设有流体出入口1141，如图4和图5所示。
盖沿122与顶盖11朝向底盖12的壁面之间具有间隙，连接板114上开设有流体出入口1141，则箱体20内的流体能够通过盖沿122与顶盖11之间的间隙及连接板114上的流体出入口1141到达流体通道15的端口处，进而穿过流体通道15到达气通孔111处，实现与外界环境的连通。具体地，当盖沿122在内、连接板114在外时，流体出入口1141与箱体20的内部空间直接连通，通过盖沿122与顶盖11之间的间隙与流体通道15的端口间接连通；当盖沿122在外、连接板114在内时，流体出入口1141与流体通道15的端口直接连通，通过盖沿122与顶盖11之间的间隙与箱体20的内部空间间接连通。
优选地，流体出入口1141的数量为多个，多个流体出入口1141沿旋合固定结构的周向方向均匀分布，如图4和图5所示。
将流体出入口1141的数量设置为多个，有效提高了气通孔111与箱体20内部空间的连通可靠性；多个流体出入口1141沿旋合固定结构的周向方向均匀分布，使得产品的结构较为规整，便于加工成型。
进一步地，底盖12朝向顶盖11的壁面的外周缘部位还设有多个条形通槽124，如图1和图2所示。
在底盖12朝向顶盖11的壁面的外周缘部位设计多个条形通槽124，便 于底盖12注塑成型时的出模工序，以减少倒扣结构；同时，也便于积存在底盖12内的药液回流至箱体20内，以提高药液的利用率。
进一步地，底盖12上还设有用于旋拧底盖12的至少一个手持部125，如图1和图2所示。
底盖12上还设有手持部125，手持部125用于旋拧底盖12，这便于底盖12与顶盖11之间的装配，有利于提高装配效率；同时装配完成后，手持部125隐藏在箱体20内部，也提高了产品的美观度。优选地，手持部125的数量为多个，多个手持部125沿底盖12的周向方向均匀分布。
进一步地，当底盖12上还设有用于旋拧底盖12的至少一个手持部125时，手持部125设有避让斜面1251，如图12所示。
进一步地，手持部125为中空结构，如图12和图14所示。
当底盖12上还设有手持部125时，在手持部125上设置避让斜面1251，能够防止手持部125的直角边刮伤用户手指或者扎手，同时也有利于减小底盖12的体积，有利于减轻箱盖10的重量；而将手持部125设计为中空结构，既有利于减重，也便于底盖12注塑成型成等厚结构。
优选地，底盖12为注塑件。
底盖12为注塑件，加工工艺成熟，适于批量生产，且有利于减轻箱盖10重量，还适于加工成各种所需的形状，因而有利于优化产品的结构与性能。
进一步地，顶盖11上还设有密封圈14，如图1、图2所示，密封圈14用于密封箱盖10与箱体20之间的间隙。
顶盖11上还设有密封圈14，密封圈14用于密封箱盖10与箱体20之间的间隙，提高了水箱的密封性，进一步降低了药液外漏的风险。
实施例二(如图6至图14所示)
与实施例一的区别在于：阻流结构包括设置在顶盖11朝向底盖12的壁面上且嵌套排布的多个第一环形阻流板113(如图10和图11所示)和设置在底盖12朝向顶盖11的壁面上且嵌套排布的多个第二环形阻流板121(如图12和图14所示)，多个第一环形阻流板113与多个第二环形阻流板121依次错开间隔排布，且多个第一环形阻流板113与底盖12朝向顶盖11的壁 面之间均具有间隙，多个第二环形阻流板121与顶盖11朝向底盖12的壁面之间均具有间隙，如图8和图9所示。
阻流结构包括多个第一环形阻流板113和多个第二环形阻流板121，多个第一环形阻流板113设置在顶盖11朝向底盖12的壁面上且依次嵌套排布，多个第二环形阻流板121设置在底盖12朝向顶盖11的壁面上且依次嵌套排布；多个第一环形阻流板113与多个第二环形阻流板121依次错开间隔分布，即：以ABABAB……的方式沿箱盖10的径向依次排开，且相邻的第一环形阻流板113与第二环形阻流板121之间具有间隙；同时，多个第一环形阻流板113与底盖12朝向顶盖11的壁面之间均具有间隙，这保证了任一环形阻流板与相邻的第二环形阻流板121之间的间隙是相互连通的，药液可以向下穿过第一环形阻流板113与底盖12之间的间隙在第一环形阻流板113两侧的两个间隙之间流动；多个第二环形阻流板121与顶盖11朝向底盖12的壁面之间也均具有间隙，这保证了任一第二环形阻流板121与相邻的第一环形阻流板113之间的间隙是相互连通的，药液可以向上穿过第二环形阻流板121与顶盖11之间的间隙在第二环形阻流板121两侧的两个间隙之间流通。这样，多个第一环形阻流板113与多个第二环形阻流板121之间的多个间隙实现连通，药液需要沿箱盖10的轴向上下运动，并沿箱盖10的径向方向运动，并越过多个第一环形阻流板113和多个第二环形阻流板121，才能到达气通孔111处，从而大大增加了药液的流阻，显著降低了药液外漏的风险，构思巧妙。
优选地，多个第一环形阻流板113同心排布，如图10和图11所示，多个第二环形阻流板121同心排布，如图12和图14所示，且多个第一环形阻流板113的中心轴线及多个第二环形阻流板121的中心轴线与气通孔111的中心轴线共线，如图8和图9所示。
多个第一环形阻流板113同心排布，多个第二环形阻流板121同心排布，且多个第一环形阻流板113的中心轴线与气通孔111的中心轴线共线，多个第二环形阻流板121的中心轴线与气通孔111的中心轴线共线，使得产品的结构较为规整，便于加工成型，也便于装配；此时，箱体20内的药液也只能由外向内穿过流体通道15才能到达气通孔111处，结构和原理较为简单，易于实现。
实施例三(图中未示出)
与实施例二的区别在于：连接板114与盖沿122中的一个上设有内螺纹，另一个上设有外螺纹，内螺纹与外螺纹相配合，使底盖12与顶盖11旋合固定。
连接板114与盖沿122中的一个上设有内螺纹，另一个上设有外螺纹，内螺纹与外螺纹相配合，同样能够实现底盖12与顶盖11的旋合固定，且结构和原理较为简单，固定较为牢靠。进一步地，也可以在连接板114上开设流体出入口1141，使盖沿122与顶盖11朝向底盖12的壁面之间具有间隙，以保证流体出入口1141能够连通流体通道15的端口及箱体20的内部空间。
实施例四(图中未示出)
与实施例一的区别在于：阻流结构包括设置在顶盖11朝向底盖12的壁面上的螺旋形阻流板112，底盖12朝向顶盖11的壁面与螺旋形阻流板112相抵靠。
相较于实施例一，实施例四省去了密封垫13，使底盖12朝向顶盖11的壁面与螺旋形阻流板112直接抵靠，同样可以封盖螺旋阻流板的轴向两端，围设出螺旋形的流体通道15，其工作原理与前述方案基本相同，在此不再赘述。
实施例五(图中未示出)
与实施例一的区别在于：阻流结构包括设置在底盖12朝向顶盖11的壁面上的螺旋形阻流板112，顶盖11朝向底盖12的壁面与螺旋形阻流板112相抵靠。
相较于实施例一，实施例五省去了密封垫13，并改变螺旋形阻流板112的设置位置，将其设置在底盖12朝向顶盖11的壁面上，使其轴向顶端与顶盖11朝向底盖12的壁面相抵靠即可，该实施例的工作原理与前述方案基本相同，在此不再赘述。
如图15所示，本发明第二方面的实施例提供的水箱，包括：箱体20和如第一方面实施例中任一项的箱盖10，盖设在箱体20的开口端，且其顶盖11上的气通孔111与外界环境相连通，其流体通道15的端口与箱体20的内 部空间相连通。
本发明第二方面的实施例提供的水箱，因包括第一方面实施例中任一项的箱盖10，因而具有上述任一实施例所具有的一切有益技术效果，在此不再赘述。
如图16所示，本发明第三方面的实施例提供的植保无人机100，包括：机身101以及如第二方面实施例的水箱，水箱搭载在机身101上。
本发明第三方面的实施例提供的植保无人机100，因包括第二方面实施例的水箱，因而具有上述任一实施例所具有的一切有益效果，在此不再赘述。
下面结合两个具体实施例来详细描述本申请提供的植保无人机，并与现有技术进行对比。
在农业无人机和其他行业应用领域，现在的植保无人机在作业过程中，随着水泵将无人机水箱内的药液逐渐抽空，如果水箱完全密封，水箱内的气压会越来越低，导致水箱被外部大气压压得变形，所以无人机水箱盖10都会有一个气通孔111，用于维持水箱内外气压平衡，防止水箱压瘪，而由此带来的问题就是水箱盖10不完全密封，水箱内药液有漏出的风险。因此，由于通气的需要，现有水箱在满载晃动时，药液很容易从水箱盖10的气通结构处晃出，造成药液损失以及药液污染。
基于此，本申请主要实现植保无人机水箱盖10的通气密封，在保证通气的条件下，增大对药液的密封能力，防止其晃出，以解决一直长期存在于无人机植保领域的该问题。
具体实施例一
一种植保无人机100，机身101搭载有水箱，水箱包括具有通气密封结构的箱盖10，该通气密封结构实质上是将迷宫密封应用在水箱盖10上。
具体地，如图1所示，水箱盖10由顶盖11、气通密封垫13、气通旋盖(即底盖12)以及顶盖11密封圈14组成。其中，如图4和图5所示，水箱顶盖11中心处存在一个气通孔111，水箱盖10内壁上在气通孔111的周围有几圈类似于螺旋线的迷宫结构的骨位(即螺旋形阻流板112)；顶盖11密封圈14用于顶盖11与水箱口的密封；气通旋盖用于扭紧气通密封垫13，将 骨位的外部端面(即朝向旋盖的一端)密封，使得流体只能穿过骨位形成的迷宫结构才能到达气孔处流出水箱，从而通过增大流阻的方式防止药液晃出。
具体实施例二
一种植保无人机100，机身101搭载有水箱，水箱包括具有通气密封结构的箱盖10，该通气密封结构实质上也是将迷宫密封应用在水箱盖10上。
具体地，如图6所示，水箱盖10由顶盖11、气通旋盖以及顶盖11密封圈14组成。其中，如图10和图11所示，水箱顶盖11中心处存在一个气通孔111，水箱盖10内壁上在气通孔111的周围有几圈同心的圆柱状骨位。如图12和图14所示，气通旋盖内上壁有几圈与顶盖11类似的同心的圆柱状骨位。顶盖11密封圈14用于顶盖11与水箱口的密封；顶盖11上的骨位与气通旋盖上骨位相互交错，使得流体只能穿过骨位形成的迷宫结构才能到达气孔处流出水箱，从而通过增大流阻的方式防止药液晃出。
此外，本发明还适用于其他需要通气密封结构(不气密，但是具有液体密封能力)的领域。
综上所述，本发明提供的箱盖，通过在箱盖上增设迷宫式的流体通道，使得箱体内的药液必须穿过流体通道才能到达气通孔处流出水箱，从而显著增加了箱体内药液外漏至箱外的流阻，进而在保证通气的基础上显著降低了药液外漏的风险，防止了药液晃出导致的药液损失及药液污染。
在本发明中，术语“第一”、“第二”、“第三”仅用于描述的目的，而不能理解为指示或暗示相对重要性；术语“多个”则指两个或两个以上，除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；“相连”可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
本发明的描述中，需要理解的是，术语“上”、“下”、“左”、“右”、“前”、“后”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或单元必须具有特定的方向、以特定的方位构造和操作，因此，不能理解为对本发 明的限制。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (27)

  1. 一种箱盖，其特征在于，包括：
    顶盖，所述顶盖上开设有气通孔；
    底盖，装配在所述顶盖的内侧，且与所述顶盖之间限定出迷宫式的流体通道，所述流体通道的一端延伸至所述气通孔处并与所述气通孔相连通，所述流体通道的另一端形成为供流体进出的端口。
  2. 根据权利要求1所述的箱盖，其特征在于，
    所述顶盖朝向所述底盖的壁面与所述底盖朝向所述顶盖的壁面中的至少一个上设有阻流结构，所述阻流结构环绕所述气通孔，并与所述顶盖及所述底盖围设出所述流体通道。
  3. 根据权利要求2所述的箱盖，其特征在于，
    所述阻流结构包括设置在所述顶盖朝向所述底盖的壁面上的螺旋形阻流板，所述底盖朝向所述顶盖的壁面与所述螺旋形阻流板之间夹设有密封垫；或者
    所述阻流结构包括设置在所述顶盖朝向所述底盖的壁面上的螺旋形阻流板，所述底盖朝向所述顶盖的壁面与所述螺旋形阻流板相抵靠；或者
    所述阻流结构包括设置在所述底盖朝向所述顶盖的壁面上的螺旋形阻流板，所述顶盖朝向所述底盖的壁面与所述螺旋形阻流板相抵靠。
  4. 根据权利要求3所述的箱盖，其特征在于，
    当所述阻流结构包括设置在所述顶盖朝向所述底盖的壁面上的螺旋形阻流板且所述底盖朝向所述顶盖的壁面与所述螺旋形阻流板之间夹设有密封垫时，所述密封垫的中部向上隆起形成定位凸台，所述定位凸台插入所述流体通道内，并与所述顶盖朝向所述底盖的壁面之间具有间隙，且所述定位凸台的侧壁面的一部分与所述螺旋形阻流板相抵靠；和/或
    所述螺旋形阻流板的螺旋中心轴线与所述气通孔的中心轴线重合。
  5. 根据权利要求2所述的箱盖，其特征在于，
    所述阻流结构包括设置在所述顶盖朝向所述底盖的壁面上且嵌套排布的多个第一环形阻流板和设置在所述底盖朝向所述顶盖的壁面上且嵌套排布的多个第二环形阻流板，多个所述第一环形阻流板与多个所述第二环形阻流板依次错开间隔排布，且多个所述第一环形阻流板与所述底盖朝 向所述顶盖的壁面之间均具有间隙，多个所述第二环形阻流板与所述顶盖朝向所述底盖的壁面之间均具有间隙。
  6. 根据权利要求5所述的箱盖，其特征在于，
    多个所述第一环形阻流板同心排布，多个所述第二环形阻流板同心排布，且多个所述第一环形阻流板的中心轴线及多个所述第二环形阻流板的中心轴线与所述气通孔的中心轴线共线。
  7. 根据权利要求1至6中任一项所述的箱盖，其特征在于，
    所述底盖与所述顶盖通过旋合固定结构相连。
  8. 根据权利要求7所述的箱盖，其特征在于，
    所述旋合固定结构包括设置在所述顶盖朝向所述底盖的壁面上的连接板和设置在所述底盖的外周缘并与所述连接板相配合的盖沿，所述盖沿与所述连接板通过旋合的方式固定相连，且所述旋合固定结构包围所述流体通道，并开设有与所述端口相连通的流体出入口。
  9. 根据权利要求8所述的箱盖，其特征在于，
    所述连接板与所述盖沿中的一个上设有多个沿所述箱盖的周向方向旋转延伸的旋转卡钩，另一个上设有与所述旋转卡钩相配合且一一对应的多个旋转卡凸，所述旋转卡钩能够在装配过程中相对所述旋转卡凸旋转并钩在所述旋转卡凸上，使所述底盖与所述顶盖旋合固定。
  10. 根据权利要求9所述的箱盖，其特征在于，
    沿所述底盖在装配过程中的旋转方向，所述旋转卡钩朝向所述旋转卡凸的壁面及所述旋转卡凸朝向所述旋转卡钩的壁面向靠近所述顶盖的方向倾斜延伸；和/或
    所述旋转卡钩设置在所述盖沿的内侧壁上，且其端部的钩接部位与所述盖沿的内侧壁之间具有间隙，所述旋转卡凸设置在所述连接板的外板面上；和/或
    所述盖沿与所述顶盖朝向所述底盖的壁面之间具有间隙，所述连接板上开设有所述流体出入口；和/或
    所述流体出入口的数量为多个，多个所述流体出入口沿所述旋合固定结构的周向方向均匀分布；和/或
    所述底盖朝向所述顶盖的壁面的外周缘部位还设有多个条形通槽。
  11. 根据权利要求8所述的箱盖，其特征在于，
    所述连接板与所述盖沿中的一个上设有内螺纹，另一个上设有外螺纹，所述内螺纹与所述外螺纹相配合，使所述底盖与所述顶盖旋合固定；和/或
    所述底盖上还设有用于旋拧所述底盖的至少一个手持部。
  12. 根据权利要求11所述的箱盖，其特征在于，
    当所述底盖上还设有用于旋拧所述底盖的至少一个手持部时，
    所述手持部设有避让斜面；和/或，所述手持部为中空结构。
  13. 根据权利要求1至6中任一项所述的箱盖，其特征在于，
    所述底盖为注塑件；和/或
    所述顶盖上还设有密封圈，所述密封圈用于密封所述箱盖与箱体之间的间隙。
  14. 一种水箱，其特征在于，包括：
    箱体；和
    箱盖，盖设在所述箱体的开口端，且其顶盖上的气通孔与外界环境相连通，其流体通道的端口与所述箱体的内部空间相连通，其中，所述箱盖包括：顶盖，所述顶盖上开设有气通孔；
    底盖，装配在所述顶盖的内侧，且与所述顶盖之间限定出迷宫式的流体通道，所述流体通道的一端延伸至所述气通孔处并与所述气通孔相连通，所述流体通道的另一端形成为供流体进出的端口。
  15. 根据权利要求14所述的水箱，其特征在于，
    所述顶盖朝向所述底盖的壁面与所述底盖朝向所述顶盖的壁面中的至少一个上设有阻流结构，所述阻流结构环绕所述气通孔，并与所述顶盖及所述底盖围设出所述流体通道。
  16. 根据权利要求15所述的水箱，其特征在于，
    所述阻流结构包括设置在所述顶盖朝向所述底盖的壁面上的螺旋形阻流板，所述底盖朝向所述顶盖的壁面与所述螺旋形阻流板之间夹设有密封垫；或者
    所述阻流结构包括设置在所述顶盖朝向所述底盖的壁面上的螺旋形阻流板，所述底盖朝向所述顶盖的壁面与所述螺旋形阻流板相抵靠；或者
    所述阻流结构包括设置在所述底盖朝向所述顶盖的壁面上的螺旋形阻流板，所述顶盖朝向所述底盖的壁面与所述螺旋形阻流板相抵靠。
  17. 根据权利要求16所述的水箱，其特征在于，
    当所述阻流结构包括设置在所述顶盖朝向所述底盖的壁面上的螺旋形阻流板且所述底盖朝向所述顶盖的壁面与所述螺旋形阻流板之间夹设有密封垫时，所述密封垫的中部向上隆起形成定位凸台，所述定位凸台插入所述流体通道内，并与所述顶盖朝向所述底盖的壁面之间具有间隙，且所述定位凸台的侧壁面的一部分与所述螺旋形阻流板相抵靠；和/或
    所述螺旋形阻流板的螺旋中心轴线与所述气通孔的中心轴线重合。
  18. 根据权利要求15所述的水箱，其特征在于，
    所述阻流结构包括设置在所述顶盖朝向所述底盖的壁面上且嵌套排布的多个第一环形阻流板和设置在所述底盖朝向所述顶盖的壁面上且嵌套排布的多个第二环形阻流板，多个所述第一环形阻流板与多个所述第二环形阻流板依次错开间隔排布，且多个所述第一环形阻流板与所述底盖朝向所述顶盖的壁面之间均具有间隙，多个所述第二环形阻流板与所述顶盖朝向所述底盖的壁面之间均具有间隙。
  19. 根据权利要求18所述的水箱，其特征在于，
    多个所述第一环形阻流板同心排布，多个所述第二环形阻流板同心排布，且多个所述第一环形阻流板的中心轴线及多个所述第二环形阻流板的中心轴线与所述气通孔的中心轴线共线。
  20. 根据权利要求14至19中任一项所述的水箱，其特征在于，
    所述底盖与所述顶盖通过旋合固定结构相连。
  21. 根据权利要求20所述的水箱，其特征在于，
    所述旋合固定结构包括设置在所述顶盖朝向所述底盖的壁面上的连接板和设置在所述底盖的外周缘并与所述连接板相配合的盖沿，所述盖沿与所述连接板通过旋合的方式固定相连，且所述旋合固定结构包围所述流体通道，并开设有与所述端口相连通的流体出入口。
  22. 根据权利要求21所述的水箱，其特征在于，
    所述连接板与所述盖沿中的一个上设有多个沿所述箱盖的周向方向旋转延伸的旋转卡钩，另一个上设有与所述旋转卡钩相配合且一一对应的 多个旋转卡凸，所述旋转卡钩能够在装配过程中相对所述旋转卡凸旋转并钩在所述旋转卡凸上，使所述底盖与所述顶盖旋合固定。
  23. 根据权利要求22所述的水箱，其特征在于，
    沿所述底盖在装配过程中的旋转方向，所述旋转卡钩朝向所述旋转卡凸的壁面及所述旋转卡凸朝向所述旋转卡钩的壁面向靠近所述顶盖的方向倾斜延伸；和/或
    所述旋转卡钩设置在所述盖沿的内侧壁上，且其端部的钩接部位与所述盖沿的内侧壁之间具有间隙，所述旋转卡凸设置在所述连接板的外板面上；和/或
    所述盖沿与所述顶盖朝向所述底盖的壁面之间具有间隙，所述连接板上开设有所述流体出入口；和/或
    所述流体出入口的数量为多个，多个所述流体出入口沿所述旋合固定结构的周向方向均匀分布；和/或
    所述底盖朝向所述顶盖的壁面的外周缘部位还设有多个条形通槽。
  24. 根据权利要求21所述的水箱，其特征在于，
    所述连接板与所述盖沿中的一个上设有内螺纹，另一个上设有外螺纹，所述内螺纹与所述外螺纹相配合，使所述底盖与所述顶盖旋合固定；和/或
    所述底盖上还设有用于旋拧所述底盖的至少一个手持部。
  25. 根据权利要求24所述的水箱，其特征在于，
    当所述底盖上还设有用于旋拧所述底盖的至少一个手持部时，
    所述手持部设有避让斜面；和/或，所述手持部为中空结构。
  26. 根据权利要求14至19中任一项所述的水箱，其特征在于，
    所述底盖为注塑件；和/或
    所述顶盖上还设有密封圈，所述密封圈用于密封所述箱盖与箱体之间的间隙。
  27. 一种植保无人机，其特征在于，包括：
    机身；以及
    如权利要求14至26中任一项所述的水箱，所述水箱搭载在所述机身上。
PCT/CN2018/122058 2018-11-19 2018-12-19 植保无人机及其水箱和箱盖 WO2020103251A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201821899708.5U CN209073318U (zh) 2018-11-19 2018-11-19 植保无人机及其水箱和箱盖
CN201821899708.5 2018-11-19

Publications (1)

Publication Number Publication Date
WO2020103251A1 true WO2020103251A1 (zh) 2020-05-28

Family

ID=67124543

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/122058 WO2020103251A1 (zh) 2018-11-19 2018-12-19 植保无人机及其水箱和箱盖

Country Status (2)

Country Link
CN (1) CN209073318U (zh)
WO (1) WO2020103251A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460101A (en) * 1982-12-28 1984-07-17 Tseng Bang Tsai Tortuous passage cover for flexible liquid container
CN2873663Y (zh) * 2004-09-07 2007-02-28 洋马株式会社 容器用盖
CN106081115A (zh) * 2016-07-12 2016-11-09 徐州九龙电子工业有限公司 一种太阳能发电式农业喷灌无人机
CN207191438U (zh) * 2017-07-31 2018-04-06 湖北龙翼机器人有限公司 一种农用喷药无人机
CN108082720A (zh) * 2017-12-05 2018-05-29 四川雷神空天科技有限公司 无人机机载容器防外溅阀盖

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460101A (en) * 1982-12-28 1984-07-17 Tseng Bang Tsai Tortuous passage cover for flexible liquid container
CN2873663Y (zh) * 2004-09-07 2007-02-28 洋马株式会社 容器用盖
CN106081115A (zh) * 2016-07-12 2016-11-09 徐州九龙电子工业有限公司 一种太阳能发电式农业喷灌无人机
CN207191438U (zh) * 2017-07-31 2018-04-06 湖北龙翼机器人有限公司 一种农用喷药无人机
CN108082720A (zh) * 2017-12-05 2018-05-29 四川雷神空天科技有限公司 无人机机载容器防外溅阀盖

Also Published As

Publication number Publication date
CN209073318U (zh) 2019-07-09

Similar Documents

Publication Publication Date Title
WO2018157337A1 (zh) 扇头及无叶风扇
WO2020103251A1 (zh) 植保无人机及其水箱和箱盖
WO2023273220A1 (zh) 雾化设备和具有其的雾化装置
CN104074646A (zh) 一种透气型防泄漏油箱盖及其应用的一种油箱
CN209090330U (zh) 带过滤装置的药品试剂柜
CN106422990A (zh) 一种适用于三相介质的反应装置
CN206782421U (zh) 液体密封桶的密封盖
CN212165632U (zh) 一种具有热风挡板的内胆
CN210593476U (zh) 一种具有防潮功能的物流储存仓
CN206209528U (zh) 一种侧流道强制对流底排式计算机机箱
CN216114446U (zh) 加湿风扇
CN210541080U (zh) 一种食品加工机
CN218773585U (zh) 一种基于网络控制化学物品存放柜
CN214157016U (zh) 烹饪器具
CN210717932U (zh) 空气加湿器一体式出雾道及具有该结构的空气加湿器
CN211408622U (zh) 盖体组件及具有其的烹饪器具
CN217510044U (zh) 餐盒盖及餐盒组件
CN211190240U (zh) 一种具备进出气功能的瓶盖
CN207072529U (zh) 一种用于液体密封桶的密封盖
CN217937892U (zh) 蒸烤一体机及集成灶
CN216071254U (zh) 一种适用于染发工具的单向进气结构及染发剂瓶
CN219128805U (zh) 一种吸收剂罐
CN219566294U (zh) 一种液体香料防串味储料装置
CN213893619U (zh) 容器盖和保温容器
CN214548878U (zh) 杯盖和电热水杯

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18940681

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18940681

Country of ref document: EP

Kind code of ref document: A1